From da283760228304fca1e6369bd31416d69e555ec0 Mon Sep 17 00:00:00 2001
From: Frederic Massart <fred@moodle.com>
Date: Thu, 3 Apr 2014 16:40:42 +0800
Subject: [PATCH 1/2] MDL-44933 themes: LESS file was served in designer mode
 and IE

---
 lib/outputlib.php | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/outputlib.php b/lib/outputlib.php
index 8adf2171b65..4112d641e62 100644
--- a/lib/outputlib.php
+++ b/lib/outputlib.php
@@ -845,6 +845,13 @@ class theme_config {
                 }
             } else if ($subtype === 'theme') {
                 $cssfiles = $css['theme'];
+                foreach ($cssfiles as $key => $value) {
+                    if ($this->lessfile && $key === $this->lessfile) {
+                        // Remove the LESS file from the theme CSS files.
+                        // The LESS files use the type 'less', not 'ie'.
+                        unset($cssfiles[$key]);
+                    }
+                }
             }
 
         } else if ($type === 'plugin') {

From 06a9e10350834badb7a7fa9bd5ee32e0933897bd Mon Sep 17 00:00:00 2001
From: Frederic Massart <fred@moodle.com>
Date: Thu, 3 Apr 2014 16:47:12 +0800
Subject: [PATCH 2/2] MDL-44933 themes: Allow chunking of CSS in designer mode

---
 lib/outputlib.php | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/outputlib.php b/lib/outputlib.php
index 4112d641e62..8e2328b5e48 100644
--- a/lib/outputlib.php
+++ b/lib/outputlib.php
@@ -670,10 +670,10 @@ class theme_config {
         $urls = array();
 
         $svg = $this->use_svg_icons();
+        $separate = (core_useragent::is_ie() && !core_useragent::check_ie_version('10'));
 
         if ($rev > -1) {
             $url = new moodle_url("$CFG->httpswwwroot/theme/styles.php");
-            $separate = (core_useragent::is_ie() && !core_useragent::check_ie_version('10'));
             if (!empty($CFG->slasharguments)) {
                 $slashargs = '';
                 if (!$svg) {
@@ -709,6 +709,10 @@ class theme_config {
                 // We do this because all modern browsers support SVG and this param will one day be removed.
                 $baseurl->param('svg', '0');
             }
+            if ($separate) {
+                // We might need to chunk long files.
+                $baseurl->param('chunk', '0');
+            }
             if (core_useragent::is_ie()) {
                 // Lalala, IE does not allow more than 31 linked CSS files from main document.
                 $urls[] = new moodle_url($baseurl, array('theme'=>$this->name, 'type'=>'ie', 'subtype'=>'plugins'));
@@ -718,7 +722,7 @@ class theme_config {
                 }
                 if (!empty($this->lessfile)) {
                     // No need to define the type as IE here.
-                    $urls[] = new moodle_url($baseurl, array('theme' => $this->name, 'type' => 'less', 'chunk' => 0));
+                    $urls[] = new moodle_url($baseurl, array('theme' => $this->name, 'type' => 'less'));
                 }
                 $urls[] = new moodle_url($baseurl, array('theme'=>$this->name, 'type'=>'ie', 'subtype'=>'theme'));